Fighting in fiddler crabs Uca mjoebergi: what determines duration?

  title={Fighting in fiddler crabs Uca mjoebergi: what determines duration?},
  author={Lesley J. Morrell and Patricia Ruth Yvonne Backwell and Neil B. Metcalfe},
  journal={Animal Behaviour},
Assessment strategies and fighting patterns in animal contests: a role for serotonin?
It is argued that current studies using only size as a proxy for RHP may be inadequate in determining the intricacies of fighting ability and that future studies investigating assessment strategies and contest outcome should include neurophysiological data.
Fighting in rounds: males of a neotropical cricket switch assessment strategies during contests
The results indicate that M. ornata males perform mutual assessment in the initial phase but switch their assessment strategy when fights escalate, suggesting a single strategy does not correctly explain how contests are settled.
High motivation enables smaller contestants to win the contests in fiddler crabs (Brachyura, Ocypodidae)
This study shows that longer fighting duration or high motivation enables the smaller contestants, especially the residents, to overcome their inferior fighting ability and win contests against larger opponents.
ESS distribution of display duration in animal contests to assess an opponent before fighting or fleeing
The more valuable the contested resource and the greater the cost of losing a contest, the longer the display lasts, and animals that assess their opponents with very high or very low efficiency will engage in shorter displays than animals with intermediate assessment efficiency.


The mismeasure of animal contests
Abstract Contests between rivals placing similar value on the resource at stake are commonly won by the rival having greater ‘resource holding potential’ (RHP). Mutual assessment of RHP difference
Strategic decisions during agonistic behaviour in the velvet swimming crab, Necora puber (L.)
In natural populations of these crabs, there may not be a close relationship between size and fighting ability and this may promote more direct assessment of factors such as strength, endurance or motivation.
Initiation and resolution of jumping spider contests: roles for size, proximity, and early detection of rivals
It is suggested that spiders base decisions of persistence on their own size, such that size-disadvantaged rivals usually reach their limits first, and then retreat, which is further supported by findings that maximum escalation and total duration were both positively related to size in contests between size-matched spiders.
Cumulative or sequential assessment during hermit crab shell fights: effects of oxygen on decision rules
  • M. Briffa, R. Elwood
  • Environmental Science
    Proceedings of the Royal Society of London. Series B: Biological Sciences
  • 2000
It is shown that the vigour of rapping and the likelihood of eviction are reduced when the attacker is subjected to low oxygen but that this treatment has no effect on rates of eviction when applied to defenders.
On Wars of Attrition Without Assessment
Contests in nature are frequently won by the animal with the higher resource holding potential (RHP), consistent with animals assessing opponents' RHP accurately. Nevertheless RHP asymmetry can
The assessment game in sand fiddler crab contests for breeding burrows
Abstract The single enlarged claw of male sand fiddler crabs, Uca pugilator , is used in contests for control of breeding burrows. The larger of the two contestants has the larger claw and usually
Fighting and assessment in male cichlid fish: the effects of asymmetries in gonadal state and body size
It is proposed that territorial fighting in a cichlid fish, Tilapia zillii, may have been assessing asymmetries unrelated to relative body size and possibly more related to levels of cost and the motivation to persist.
Imperfect assessment and limited information preclude optimal strategies in male–male fights in the orb-weaving spider Metellina mengei
Agonistic behaviour between male orb–web spiders Metellina mengei competing for access to female webs was examined in field experiments to test the major predictions of game theory and a failure of some contestants to obtain information on resource value and relative contestant size necessary to optimize fight strategy is discussed.
Territorial defence in the great tit (Parus major): Do residents always win?
  • J. Krebs
  • Biology
    Behavioral Ecology and Sociobiology
  • 2004
I removed resident pairs of great tits from their territories for short periods and released them after replacement pairs had occupied the spaces, consistent with the hypothesis that territorial residents win in contests against intruders because of an asymmetry in payoff rather than an asymmetric in resource holding potential or an arbitary convention.